# 셀리온 스마트 WIFI vs WATTAGAM,

The clearest difference is update cadence: WATTAGAM, at every 5 days against 셀리온 스마트 WIFI's every 11 months. 셀리온 스마트 WIFI's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

셀리온 스마트 WIFI ships an update every 11 months, WATTAGAM, every 5 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 셀리온 스마트 WIFI | WATTAGAM, |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.1 (8 ratings)](https://appshunter.io/ios/app/wifi/id6460646033/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 37.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 93 MB | 106 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [에스피케어](https://appshunter.io/developer/1537929466) | [Geunmin Heo](https://appshunter.io/developer/1895332587) |

## What reviewers say

### 셀리온 스마트 WIFI

[App page](https://appshunter.io/ios/app/wifi/id6460646033)

This app optimizes your sleeping environment by intelligently adjusting temperature based on external conditions and user patterns. It offers specialized modes for different needs, including a warming 'Jjimjil' mode, a safe 'Ansim' mode for specific mattresses, a 'Sukmyeon' mode for better sleep, and a 'Kids' mode with safety locks. It also includes calming sounds to aid relaxation.

**Highlights:** AI-powered temperature optimization, Seasonal temperature adjustments, User pattern learning for satisfaction, Warming 'Jjimjil' mode, Safe 'Ansim' mode for mattresses, Deep sleep 'Sukmyeon' mode, Child safety lock 'Kids' mode, Soothing sleep sounds

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### WATTAGAM,

[App page](https://appshunter.io/ios/app/wattagam/id6787635253)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 셀리온 스마트 WIFI free?

셀리온 스마트 WIFI is free to download, with no in-app purchases.

### Is WATTAGAM, free?

WATTAGAM, is free to download, with no in-app purchases.

### Do 셀리온 스마트 WIFI or WATTAGAM, have ads?

Neither 셀리온 스마트 WIFI nor WATTAGAM, shows ads.

### Which is updated more often, 셀리온 스마트 WIFI or WATTAGAM,?

셀리온 스마트 WIFI ships an update every 11 months, and WATTAGAM, every 5 days. Most recently, 셀리온 스마트 WIFI was updated on November 3, 2026 and WATTAGAM, on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*